NAME
Object::BlankStr - Object which stringifies to empty string ("")
VERSION
version 0.05
SYNOPSIS
use Object::BlankStr;
die Object::BlankStr->new; # dies without printing anything
# checking exception the right way
eval { die rand() > 0.5 ? Object::BlankStr->new : "blurg" };
my $eval_err = $@;
if ($eval_err || ref($eval_err)) {
...
}
# checking exception the WRONG way, object is stringified to "" and becomes
# false
eval { die rand() > 0.5 ? Object::BlankStr->new : "blurg" };
if ($@) {
...
}
DESCRIPTION
Object::BlankStr is just an empty object which stringifies to "" (empty
string). Since it is an object, it has a boolean true value (but be
careful with stringification, see SYNOPSIS).
So far the only case I've found this to be useful is for die()-ing
without printing anything. If you just use 'die;' or 'die "";' Perl will
print the default "Died at ..." message. But if you say 'die
Object::BlankStr->new;' Perl will die without printing anything.
SEE ALSO
Object::NulStr
Object::SpaceBackStr
AUTHOR
Steven Haryanto
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Steven Haryanto.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.